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Listed below are the amounts of mercury (in parts per million or ppm) found in tuna sushi in different stores. The sample mean is 0.900 and the standard deviation is 0.249. Use technology to construct a 90% confidence interval estimate of mean amount of mercury in population.
1.16 0.61 1.14 0.85 0.64 0.74 1.16
What is the confidence interval estimate of the mean of mercury in the population?
In a population of 5000 students, a simple random sample of 50 students is selected in order to estimate the weighted average mark for the population.
the average number of field mice per acre in a 5-acre wheat field is estimated to be 12. find the probability that
A lumber company has claimed that the standard deviation for the lengths of their 6 foot boards is 0.5 inches or less. To test their claim , a random sample of 17 six-foot boards is selected
The random variable x, which is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length.
Reject H0 at β β = .01; there is evidence of a difference between the mean voter turnouts for urban, suburban, and rural precincts.
A company is interested in knowing which are the potential sales next year if you use $ 20,000 in advertising expenses. The company uses the information from previous years to make its sales forecast.
Kannon Camera has developed a new camera that it claims can take an average of more than 10 photographs per second. You decide to evaluate the company's claim.
During a recent year the average cost of making a movie was $54.8 million. This year, a random sample of 15 recent action movies had an average production cost of $62.3 million with a variance of $ 8 million.
Normally distributed with a=2.6inches, answer the following questions. What is the percentile rank of a 20 to 29 year old female who is 60 inches tall?
The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.
standard error for regression equation.1.nbsp ifnbspnbsprnbsp 0.15 find the coefficients of determination and non
Suppose that the null hypothesis is rejected and that an alternate hypothesis is accepted. Discuss the conclusion as a type I error, a type II error, or a correct decision-if in fact the defendant is innocent.
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